diff --git a/app/main.go b/app/main.go
index 17c8052..d9c8885 100644
--- a/app/main.go
+++ b/app/main.go
@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"os"
 	"strings"
-	"time"
 
 	"github.com/yedf/dtm/dtmcli"
 	"github.com/yedf/dtm/dtmsvr"
@@ -14,28 +13,22 @@ import (
 // M alias
 type M = map[string]interface{}
 
-func wait() {
-	for {
-		time.Sleep(10000 * time.Second)
-	}
-}
+var usage = `dtm is a lightweight distributed transaction manager.
+
+usage:
+    dtm [command]
+
+Available commands:
+    dtmsvr         run dtm as a server
+    dev            create all needed table and run dtm as a server
+
+    quick_start    run quick start example (dtm will create needed table)
+    qs             same as quick_start
+`
 
 func main() {
 	if len(os.Args) == 1 {
-		for _, ln := range []string{
-			"dtm is a lightweight distributed transaction manager.",
-			"usage:",
-			"dtm [command]",
-			"",
-			"Available Commands:",
-			"dtmsvr            run dtm as a server.",
-			"dev               create all needed table and run dtm as a server.",
-			"",
-			"quick_start       run quick start example. dtm will create all needed table",
-			"qs                same as quick_start",
-		} {
-			fmt.Print(ln + "\n")
-		}
+		fmt.Println(usage)
 		for name := range examples.Samples {
 			fmt.Printf("%-18srun a sample includes %s\n", name, strings.Replace(name, "_", " ", 100))
 		}
@@ -48,12 +41,13 @@ func main() {
 	dtmsvr.StartSvr()              // 启动dtmsvr的api服务
 	go dtmsvr.CronExpiredTrans(-1) // 启动dtmsvr的定时过期查询
 
-	// quick_start 比较独立，单独作为一个例子运行，方便新人上手
-	if os.Args[1] == "quick_start" || os.Args[1] == "qs" {
+	switch os.Args[1] {
+	case "quick_start", "qs":
+		// quick_start 比较独立，单独作为一个例子运行，方便新人上手
 		examples.QsStartSvr()
 		examples.QsFireRequest()
-	} else if os.Args[1] == "dev" || os.Args[1] == "dtmsvr" {
-	} else {
+	case "dev", "dtmsvr":
+	default:
 		// 下面是各类的例子
 		examples.GrpcStartup()
 		examples.BaseAppStartup()
@@ -62,5 +56,5 @@ func main() {
 		dtmcli.LogIfFatalf(sample == nil, "no sample name for %s", os.Args[1])
 		sample.Action()
 	}
-	wait()
+	select {}
 }
diff --git a/common/types.go b/common/types.go
index 9dba224..a035a9f 100644
--- a/common/types.go
+++ b/common/types.go
@@ -10,15 +10,11 @@ import (
 	"time"
 
 	_ "github.com/go-sql-driver/mysql"
-	"github.com/yedf/dtm/dtmcli"
 	"gopkg.in/yaml.v2"
-
-	// _ "github.com/lib/pq"
-
 	"gorm.io/driver/mysql"
-
-	// "gorm.io/driver/postgres"
 	"gorm.io/gorm"
+
+	"github.com/yedf/dtm/dtmcli"
 )
 
 // ModelBase model base for gorm to provide base fields
@@ -28,11 +24,9 @@ type ModelBase struct {
 	UpdateTime *time.Time `gorm:"autoUpdateTime"`
 }
 
-func getGormDialator(driver string, dsn string) gorm.Dialector {
+func getGormDialetor(driver string, dsn string) gorm.Dialector {
 	if driver == "mysql" {
 		return mysql.Open(dsn)
-		// } else if driver == "postgres" {
-		// 	return postgres.Open(dsn)
 	}
 	panic(fmt.Errorf("unkown driver: %s", driver))
 }
@@ -112,7 +106,7 @@ func DbGet(conf map[string]string) *DB {
 	dsn := dtmcli.GetDsn(conf)
 	if dbs[dsn] == nil {
 		dtmcli.Logf("connecting %s", strings.Replace(dsn, conf["password"], "****", 1))
-		db1, err := gorm.Open(getGormDialator(conf["driver"], dsn), &gorm.Config{
+		db1, err := gorm.Open(getGormDialetor(conf["driver"], dsn), &gorm.Config{
 			SkipDefaultTransaction: true,
 		})
 		dtmcli.E2P(err)
diff --git a/common/types_test.go b/common/types_test.go
index 906d7a0..8ab7303 100644
--- a/common/types_test.go
+++ b/common/types_test.go
@@ -20,7 +20,7 @@ func TestDb(t *testing.T) {
 }
 
 func TestDbAlone(t *testing.T) {
-	db, err := dtmcli.SdbAlone(DtmConfig.DB)
+	db, err := dtmcli.StandaloneDB(DtmConfig.DB)
 	assert.Nil(t, err)
 	_, err = dtmcli.DBExec(db, "select 1")
 	assert.Equal(t, nil, err)
diff --git a/common/utils.go b/common/utils.go
index d93fea1..14a89c0 100644
--- a/common/utils.go
+++ b/common/utils.go
@@ -12,6 +12,7 @@ import (
 
 	"github.com/gin-gonic/gin"
 	"github.com/go-resty/resty/v2"
+
 	"github.com/yedf/dtm/dtmcli"
 )
 
@@ -69,8 +70,8 @@ func MustGetwd() string {
 	return wd
 }
 
-// GetCurrentCodeDir 获取当前源代码的目录，主要用于测试时，查找相关文件
-func GetCurrentCodeDir() string {
+// GetCallerCodeDir 获取调用该函数的caller源代码的目录，主要用于测试时，查找相关文件
+func GetCallerCodeDir() string {
 	_, file, _, _ := runtime.Caller(1)
 	wd := MustGetwd()
 	if strings.HasSuffix(wd, "/test") {
diff --git a/common/utils_test.go b/common/utils_test.go
index 35b1461..df862d1 100644
--- a/common/utils_test.go
+++ b/common/utils_test.go
@@ -35,7 +35,7 @@ func TestFuncs(t *testing.T) {
 	wd := MustGetwd()
 	assert.NotEqual(t, "", wd)
 
-	dir1 := GetCurrentCodeDir()
+	dir1 := GetCallerCodeDir()
 	assert.Equal(t, true, strings.HasSuffix(dir1, "common"))
 
 }
diff --git a/dtmcli/utils.go b/dtmcli/utils.go
index 38f9ebc..2ef73c0 100644
--- a/dtmcli/utils.go
+++ b/dtmcli/utils.go
@@ -105,11 +105,14 @@ func MustRemarshal(from interface{}, to interface{}) {
 	E2P(err)
 }
 
+var layout = "2006-01-02 15:04:05.999"
+
 // Logf 输出日志
 func Logf(format string, args ...interface{}) {
 	msg := fmt.Sprintf(format, args...)
-	n := time.Now()
-	ts := fmt.Sprintf("%s.%03d", n.Format("2006-01-02 15:04:05"), n.Nanosecond()/1000000)
+
+	ts := time.Now().Format(layout)
+
 	var file string
 	var line int
 	for i := 1; i < 10; i++ {
@@ -182,11 +185,11 @@ func MayReplaceLocalhost(host string) string {
 
 var sqlDbs = map[string]*sql.DB{}
 
-// SdbGet get pooled sql.DB
-func SdbGet(conf map[string]string) (*sql.DB, error) {
+// PooledDB get pooled sql.DB
+func PooledDB(conf map[string]string) (*sql.DB, error) {
 	dsn := GetDsn(conf)
 	if sqlDbs[dsn] == nil {
-		db, err := SdbAlone(conf)
+		db, err := StandaloneDB(conf)
 		if err != nil {
 			return nil, err
 		}
@@ -195,10 +198,10 @@ func SdbGet(conf map[string]string) (*sql.DB, error) {
 	return sqlDbs[dsn], nil
 }
 
-// SdbAlone get a standalone db connection
-func SdbAlone(conf map[string]string) (*sql.DB, error) {
+// StandaloneDB get a standalone db instance
+func StandaloneDB(conf map[string]string) (*sql.DB, error) {
 	dsn := GetDsn(conf)
-	Logf("opening alone %s: %s", conf["driver"], strings.Replace(dsn, conf["password"], "****", 1))
+	Logf("opening standalone %s: %s", conf["driver"], strings.Replace(dsn, conf["password"], "****", 1))
 	return sql.Open(conf["driver"], dsn)
 }
 
diff --git a/dtmcli/xa_base.go b/dtmcli/xa_base.go
index 1c33c7b..1b1367d 100644
--- a/dtmcli/xa_base.go
+++ b/dtmcli/xa_base.go
@@ -15,7 +15,7 @@ type XaClientBase struct {
 
 // HandleCallback 处理commit/rollback的回调
 func (xc *XaClientBase) HandleCallback(gid string, branchID string, action string) error {
-	db, err := SdbAlone(xc.Conf)
+	db, err := StandaloneDB(xc.Conf)
 	if err != nil {
 		return err
 	}
@@ -32,7 +32,7 @@ func (xc *XaClientBase) HandleCallback(gid string, branchID string, action strin
 func (xc *XaClientBase) HandleLocalTrans(xa *TransBase, cb func(*sql.DB) (interface{}, error)) (ret interface{}, rerr error) {
 	branchID := xa.NewBranchID()
 	xaBranch := xa.Gid + "-" + branchID
-	db, rerr := SdbAlone(xc.Conf)
+	db, rerr := StandaloneDB(xc.Conf)
 	if rerr != nil {
 		return
 	}
diff --git a/dtmsvr/main.go b/dtmsvr/dtmsvr.go
similarity index 91%
rename from dtmsvr/main.go
rename to dtmsvr/dtmsvr.go
index 9ca2e23..7f57542 100644
--- a/dtmsvr/main.go
+++ b/dtmsvr/dtmsvr.go
@@ -9,8 +9,9 @@ import (
 	"github.com/yedf/dtm/dtmcli"
 	"github.com/yedf/dtm/dtmgrpc"
 
-	"github.com/yedf/dtm/examples"
 	"google.golang.org/grpc"
+
+	"github.com/yedf/dtm/examples"
 )
 
 var dtmsvrPort = 8080
@@ -39,6 +40,6 @@ func StartSvr() {
 
 // PopulateDB setup mysql data
 func PopulateDB(skipDrop bool) {
-	file := fmt.Sprintf("%s/dtmsvr.%s.sql", common.GetCurrentCodeDir(), config.DB["driver"])
+	file := fmt.Sprintf("%s/dtmsvr.%s.sql", common.GetCallerCodeDir(), config.DB["driver"])
 	examples.RunSQLScript(config.DB, file, skipDrop)
 }
diff --git a/examples/base_types.go b/examples/base_types.go
index 21afe4d..0e2381c 100644
--- a/examples/base_types.go
+++ b/examples/base_types.go
@@ -66,7 +66,7 @@ func dbGet() *common.DB {
 }
 
 func sdbGet() *sql.DB {
-	db, err := dtmcli.SdbGet(config.DB)
+	db, err := dtmcli.PooledDB(config.DB)
 	dtmcli.FatalIfError(err)
 	return db
 }
diff --git a/examples/data.go b/examples/data.go
index 9bbc5bc..5bf120f 100644
--- a/examples/data.go
+++ b/examples/data.go
@@ -13,7 +13,7 @@ var config = common.DtmConfig
 
 // RunSQLScript 1
 func RunSQLScript(conf map[string]string, script string, skipDrop bool) {
-	con, err := dtmcli.SdbAlone(conf)
+	con, err := dtmcli.StandaloneDB(conf)
 	dtmcli.FatalIfError(err)
 	defer func() { con.Close() }()
 	content, err := ioutil.ReadFile(script)
@@ -21,7 +21,7 @@ func RunSQLScript(conf map[string]string, script string, skipDrop bool) {
 	sqls := strings.Split(string(content), ";")
 	for _, sql := range sqls {
 		s := strings.TrimSpace(sql)
-		if s == "" || skipDrop && strings.Contains(s, "drop") {
+		if s == "" || (skipDrop && strings.Contains(s, "drop")) {
 			continue
 		}
 		_, err = dtmcli.DBExec(con, s)
@@ -31,9 +31,9 @@ func RunSQLScript(conf map[string]string, script string, skipDrop bool) {
 
 // PopulateDB populate example mysql data
 func PopulateDB(skipDrop bool) {
-	file := fmt.Sprintf("%s/examples.%s.sql", common.GetCurrentCodeDir(), config.DB["driver"])
+	file := fmt.Sprintf("%s/examples.%s.sql", common.GetCallerCodeDir(), config.DB["driver"])
 	RunSQLScript(config.DB, file, skipDrop)
-	file = fmt.Sprintf("%s/../dtmcli/barrier.%s.sql", common.GetCurrentCodeDir(), config.DB["driver"])
+	file = fmt.Sprintf("%s/../dtmcli/barrier.%s.sql", common.GetCallerCodeDir(), config.DB["driver"])
 	RunSQLScript(config.DB, file, skipDrop)
 }
 
diff --git a/go.mod b/go.mod
index b001692..6b851d2 100644
--- a/go.mod
+++ b/go.mod
@@ -13,7 +13,6 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/stretchr/testify v1.7.0
-	github.com/yedf/dtmcli v1.0.0
 	golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d // indirect
 	golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069 // indirect
 	google.golang.org/genproto v0.0.0-20210805201207-89edb61ffb67 // indirect
diff --git a/go.sum b/go.sum
index 83c4fb0..8728ab7 100644
--- a/go.sum
+++ b/go.sum
@@ -39,7 +39,6 @@ github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfU
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I=
 github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
 github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
 github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
@@ -48,7 +47,6 @@ github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:W
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
 github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
-github.com/golang/protobuf v1.4.3 h1:JjCZWpVbqXDqFVmTfYWEVTMIYrL/NPdPSCHPJ0T/raM=
 github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
@@ -58,17 +56,16 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
-github.com/jinzhu/now v1.1.1 h1:g39TucaRWyV3dwDO++eEc6qf8TVIQ/Da48WmqjZ3i7E=
 github.com/jinzhu/now v1.1.1/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
 github.com/jinzhu/now v1.1.2 h1:eVKgfIdy9b6zbWBMgFpfDPoAMifwSZagU9HmEU6zgiI=
 github.com/jinzhu/now v1.1.2/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
-github.com/json-iterator/go v1.1.9 h1:9yzud/Ht36ygwatGx56VwCZtlI/2AD15T1X2sjSuGns=
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
 github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
@@ -81,11 +78,9 @@ github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y=
 github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII=
 github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
-github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
-github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
@@ -93,12 +88,8 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
-github.com/sirupsen/logrus v1.7.0 h1:ShrD1U9pZB12TX0cVy0DtePoCH97K8EtX+mg7ZARUtM=
-github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
@@ -107,8 +98,6 @@ github.com/ugorji/go v1.1.7 h1:/68gy2h+1mWMrwZFeD1kQialdSzAb432dtpeJ42ovdo=
 github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw=
 github.com/ugorji/go/codec v1.1.7 h1:2SvQaVZ1ouYrrKKwoSk2pzd4A9evlKJb9oTL+OaLUSs=
 github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY=
-github.com/yedf/dtmcli v1.0.0 h1:doGNh8NWiO+9Upq0PEpYamQlLyGWFU0IoBnQWE0ZxkQ=
-github.com/yedf/dtmcli v1.0.0/go.mod h1:hjjL7IHcTSwkq1vHyPKUbUXi1vbLFp1ZkkDtSy2JZ7o=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@@ -129,9 +118,7 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
-golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4 h1:4nGaVu0QrbjT/AK2PRLuQfQuh6DJve+pELhqTdAj3x0=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
-golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d h1:20cMwl2fHAzkJMEA+8J4JgqBQcQGzbisXo31MIeenXI=
 golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -144,12 +131,9 @@ golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200116001909-b77594299b42 h1:vEOn+mP2zCOVzKckCZy6YsCtDblrpj/w7B9nxGNELpg=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44 h1:Bli41pIlzTzf3KEY06n+xnzK/BESIg2ze4Pgfh/aI8c=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -158,7 +142,6 @@ golang.org/x/sys v0.0.0-20210806184541-e5e7981a1069/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
@@ -174,13 +157,13 @@ golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
-google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
 google.golang.org/genproto v0.0.0-20210805201207-89edb61ffb67 h1:VmMSf20ssFK0+u1dscyTH9bU4/M4y+X/xNfkvD6kGtM=
 google.golang.org/genproto v0.0.0-20210805201207-89edb61ffb67/go.mod h1:ob2IJxKrgPT52GcgX759i1sleT07tiKowYBGbczaW48=
@@ -201,19 +184,16 @@ google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzi
 google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
diff --git a/test/xa_test.go b/test/xa_test.go
index 1b980da..8c36586 100644
--- a/test/xa_test.go
+++ b/test/xa_test.go
@@ -52,7 +52,7 @@ func xaDuplicate(t *testing.T) {
 		req := examples.GenTransReq(30, false, false)
 		_, err := xa.CallBranch(req, examples.Busi+"/TransOutXa")
 		assert.Nil(t, err)
-		sdb, err := dtmcli.SdbAlone(common.DtmConfig.DB)
+		sdb, err := dtmcli.StandaloneDB(common.DtmConfig.DB)
 		assert.Nil(t, err)
 		dtmcli.DBExec(sdb, "xa recover")
 		dtmcli.DBExec(sdb, "xa commit 'xaDuplicate-0101'") // 先把某一个事务提交，模拟重复请求